News Posted August 18, 2011 Share Posted August 18, 2011 For over a century, Michigan's Keweenaw Peninsula has been the site of copper mining. This has resulted in approximately 500 million tons of tailings, fine sandlike material left over by the copper extraction process. More... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now